Dr. Stephen Leff PH.D.
About this NPIWhat this record shows.
NPI 1124110291 is registered to Dr. Stephen Leff PH.D., a Clinical Psychologist practising at 3440 Market St, Suite 200 in Philadelphia, Pennsylvania. Clinical Psychologist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Stephen Leff PH.D. has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Your brand here.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. Stephen Leff PH.D. accepts. To confirm in-network status with your specific health plan, contact Dr. Stephen Leff PH.D. directly at (215) 590-7555.
Frequently asked
Yes. NPI 1124110291 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Clinical Psychologist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (215) 590-7555.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Dr. Stephen Leff PH.D. is a Type-1 individual NPI.